P. V. Sagala, B. Wibawanta, and O. D. Appulembang, “HUBUNGAN ANTARA KECERDASAN SPIRITUAL (SI) DENGAN HASIL BELAJAR KOGNITIF SISWA KELAS VIII SMPK KALAM KUDUS YOGYAKARTA PADA PEMBELAJARAN MATEMATIKA [THE RELATIONSHIP BETWEEN SPIRITUAL INTELLIGENCE (SI) AND COGNITIVE LEARNING OUTCOMES OF GRADE 8 STUDENTS SMPK KALAM KUDUS YOGYAKARTA IN LEARNING MATHEMATICS]”, JOHME, vol. 2, no. 1, pp. 22–33, Dec. 2018.